Arixyleborus sittichayai

Taxonomic history

Arixyleborus sittichayai Smith, Beaver & Cognato 2020 (in Smith et al. 2020bSmith et al. 2020b:
Smith SM, Beaver RA, and Cognato AI. 2020b. A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China. ZooKeys 983: 1-442. https://doi.org/10.3897/zookeys.983.52630): 133.

Diagnosis

2.3 mm long (n = 1); 2.3 times as long as wide. This species is distinguished by the protibiaprotibia:
tibia of the first pair of legs
posteriorposterior:
toward the rear end; opposite of anterior
face flat and unarmed; antennalantennal:
pertaining to the antennae
club as broad as tall; posterolateralposterolateral:
relating to end of the side part/portion
carinacarina:
an elevated ridge or keel, not necessarily high or acute
oblique, granulategranulate:
pertaining to a coarse, grainy surface texture
; elytralelytral:
pertaining to the elytra
discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
flat, without a transverse depression; striaestria:
punctures in rows, which may or may not be impressed to make grooves
not impressedimpressed:
a depression in a surface
on discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
, feeble on declvity; declivitaldeclivital:
pertaining to the elytral declivity
interstriae bearing two rows of long thick semi-erect hair-like setaeseta:
small hair-like or scale-like structure
, setaeseta:
small hair-like or scale-like structure
as long as 1.5 interstrial widths.

May be confused with

Arixyleborus granulifer

Distribution

Thailand

Host plants

unknown (Smith et al. 2020bSmith et al. 2020b:
Smith SM, Beaver RA, and Cognato AI. 2020b. A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China. ZooKeys 983: 1-442. https://doi.org/10.3897/zookeys.983.52630)

DNA data

specimens not available for sequencing